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Hydraulic System
Maintenance
Servicing the Hydraulic
System
Hydraulic Oil Type: Toro
®
hydraulic oil or Mobil
Hydraulic System Oil Capacity: 67 oz. (2.0 l)
Important: Use oil specified. Other fluids could
cause system damage.
Checking the Hydraulic Fluid
Service Interval: After the first 8 hours
Every 50 hours
Note: There are two ways of checking the hydraulic oil.
One is when the oil is warm and one is when the oil is
cold. The baffle inside the tank has two levels depending
if the oil is warm or cold.
1. Position machine on a level surface.
2. Disengage the power take off (PTO) and shut off
the engine.
3. Wait for all moving parts to stop before leaving the
operating position and then set the parking brake.
4. Clean area around cap and filler neck of hydraulic
tank (Figure 80).
4
Figure 80
1. Cap
2. Baffle
5. Remove cap from filler neck. Look inside to check
the fluid level in the reservoir. (Figure 80).
6. Add fluid to the reservoir until it reaches the cold
level of the baffle.
®
HYPR-OIL
™
500
1 15W-50 synthetic motor oil.
1
3
2
G012005
3. Cold fluid level-full
4. Hot fluid level-full
7. Run the machine at low idle for 15 minutes to allow
any air to purge out of the system and warm fluid.
Refer to Starting and Stopping the Engine.
8. Recheck the fluid level while the fluid is warm. If
required, add fluid to the reservoir until it is between
the hot level and the cold level.
Note: The fluid level should be below the hot level
of the baffle, when the fluid is warm (Figure 80).
9. Install cap on filler neck.
WARNING
Hydraulic fluid escaping under pressure can
penetrate skin and cause injury.
• If hydraulic fluid is injected into the skin
it must be surgically removed within a few
hours by a doctor familiar with this type of
injury. Gangrene may result if this is not
done.
• Keep body and hands away from pin hole
leaks or nozzles that eject high pressure
hydraulic fluid.
• Use cardboard or paper to find hydraulic
leaks.
• Safely relieve all pressure in the hydraulic
system before performing any work on the
hydraulic system.
• Make sure all hydraulic fluid hoses and
lines are in good condition and all hydraulic
connections and fittings are tight before
applying pressure to hydraulic system.
Replacing the Hydraulic Fluid
Service Interval: Every 250 hours—Change the
hydraulic filter and hydraulic oil when
using Mobil
Every 500 hours/Yearly (whichever
comes first)—Change the hydraulic
filter and hydraulic oil when using
Toro
oil.
Note: Change the hydraulic fluid more frequently in
severe conditions or in a hot operating climate.
WARNING
Hot hydraulic fluid can cause severe burns.
Allow the hydraulic fluid to cool before performing
any maintenance to the hydraulic system.
52
®
1 oil.
®
™
HYPR-OIL
500 hydraulic
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